The Guppy is a 2.75m long grey F - Rib powered by a 6HP outboard. I have found that dolphins of many different shapes and sizes are attracted to its hard hull. This video illustrates that point rather well ... and is when I encountered a pod of Bottlenose Dolphins at Arisaig.
Credits to my brother DouglasW of https://seakayakphoto.blogspot.co.uk/ for the additional photos of me sitting in the small grey bath tub ..surrounded by huge fins and tails. A fishy story indeed. .except for the video proof that this dream really took place
For F-RIB information see this forum http://f-ribsandsibs.com/index.php